Define a sketch, not a finished production
This workflow is for beginning composers and piano learners sharing one short musical idea with a teacher, collaborator or arranger. The deliverable is an editable performance plus an audible reference, not a mastered release or an automatically generated arrangement. State the key, intended tempo, phrase boundaries and what feedback is needed. Keep an authorized original and distinguish each revision.
Choose the output contract before playing: MIDI for editing, audio for listening, and a note linking both to one revision. Browser piano processing stays on the device and uses no microphone. Supporting audio tools may upload files; check permission before sending an unreleased piece. A MIDI keyboard additionally needs a compatible browser on HTTPS or localhost.
Make a musical choice before recording
For an unharmonized idea, enter scale degrees and a target key into the melodic-sketch chord finder. Compare a few diatonic candidates by ear. Its ranking describes model preferences, not the best artistic answer. If the chords already exist, use the Roman numeral visualizer to examine harmonic function and possible transposition instead.
Both aids use bounded major/natural-minor theory. Neither listens to your piano recording or reliably explains borrowed chords. Write down deliberate exceptions rather than forcing them into a diatonic label. Keep the chosen progression and key with the take; a candidate audition is not an automatic accompaniment track in the piano recorder.
Save the performance and verify the external bridge
Record a short manageable phrase in the 88-key piano. Check notes and pedal by listening, then save its MIDI with a take number before beginning again: a new recording replaces the previous take. The recorder allows up to 10 minutes or 20,000 events; do not use that limit as a storage strategy. Download accepted and alternate takes locally.
MIDI stores performance events, not the sampled sound. Reopen the actual downloaded file in external music software. Check note positions and lengths, velocity, tempo interpretation, note releases and sustain behavior. Do not assume an imported tempo setting proves that the performed rhythm is correct. Listen to the intended phrase and document corrections. Preserve the original MIDI if editing or quantizing a copy.
Select an instrument and render audio externally, recording the software, instrument, tempo and export settings. Browser timing and sound can vary, and piano samples last up to six seconds; sustain does not extend their natural sample end. The reference from another instrument need not reproduce the browser sound. If external rendering is unavailable, deliver MIDI only and label the audio reference as outstanding rather than claiming a complete pair.
Review the file without polishing away the idea
Read the rendered audio's codec, duration, sample rate and channels with the metadata viewer. If unwanted lead-in or tail silence needs cutting, work on a copy and use the actual audible boundary. Preserve pickup notes, pedal release and reverb decay. Reinspect metadata and listen after any cut; the original render's measurements no longer describe the final artifact.
Use a waveform to locate suspected abrupt edges or long gaps, then confirm them by ear. It cannot prove correct pitches, correct pedal or absence of distortion. Measure integrated LUFS, true peak and loudness range as review context, not as a mandate to normalize every sketch. Very short or quiet material may produce unavailable or unhelpful integrated readings. Record the limitation and agree a listening level instead of inventing a pass mark.
Listen from beginning to end at a safe volume, including the last decay. If the wrong instrument, stuck sustain, missing pickup or distorted peak is found, fix the corresponding performance or render stage and repeat the final-file checks. A report alone is not musical acceptance.
Hand off a reproducible pair
Use matching revision names for MIDI and final audio. Include key, intended tempo, chosen chords, instrument/render settings, any MIDI edits, optional trim offsets, reviewer decision and unresolved issues. Keep the original take separate from the approved editable revision. Download all artifacts; a temporary processing URL is not durable delivery.
Calculate SHA-256 on the final local MIDI and audio after all changes. The recipient can compare those values to identify the same files; hashes do not prove musical quality or ownership. Mark external-software checks as pending if not performed. Continue with singing practice for vocal adaptation, multitrack mixing for arrangement, or mastering/loudness workflows for a later release requirement. This workflow ends at one reviewed sketch and its listening reference.